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Passive Component Band-pass filter
wo_rasp Offline
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#9
12-16-2017, 01:38 AM (This post was last modified: 12-16-2017, 02:16 AM by wo_rasp.)
No ,a 433 MHz Filter is not sufficient, as OOK modulation of a 433 MHz carrier is used and as we do not deal with sinus wave signals either you could use the 5th or 7th harmonic of a pulse duration, however due to the fact that some devices have a pulse duration of 80 mSec, others of 2mSec and the minimum is approximately 0,15 mSec you face some difficulties with a proper analog circuit design.
IMHO on a Pi2 or Pi3 it is best to operate the LPF in no filter mode as sufficient CPU power is available.

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Messages In This Thread
Passive Component Band-pass filter - by ripper121 - 11-28-2017, 04:36 PM
Passive Component Band-pass filter - by wo_rasp - 12-16-2017, 01:38 AM

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